I have 2 ten gallon tanks someone gave my the other day and want to do something for my breeding pair of convicts with them. Right now they're in a 15 gallon bow front so it's an upgrade even though it's still gonna be small. The tanks are just the 20*10*12 Wal-Mart tanks. I'm not looking to invest any money on it( I already have most tank building tools and supplies around) just looking for something to get creative on and maybe make a pair of fish a little happier. My ideas so far are to either make a 20 long out of them or an octagon using the front and back panels and side panels 4- 20*12, 4- 10*12 panels. Also had an idea for a 20*20*12 cube but not sure. Any ideas or thoughts would be appreciated